import React, { useState, useMemo } from 'react';
import { Table, Avatar } from '@douyinfe/semi-ui';
import * as dateFns from 'date-fns';

const DAY = 24 * 60 * 60 * 1000;
const figmaIconUrl = 'https://lf3-static.bytednsdoc.com/obj/eden-cn/ptlz_zlp/ljhwZthlaukjlkulzlp/figma-icon.png';
const pageSize = 5;

const columns = [
    {
        title: '标题',
        dataIndex: 'name',
        width: 400,
        render: (text, record, index) => {
            return (
                <div>
                    <Avatar size="small" shape="square" src={figmaIconUrl} style={{ marginRight: 12 }}></Avatar>
                    {text}
                </div>
            );
        },
        filters: [
            {
                text: 'Semi Design 设计稿',
                value: 'Semi Design 设计稿',
            },
            {
                text: 'Semi Pro 设计稿',
                value: 'Semi Pro 设计稿',
            },
        ],
        onFilter: (value, record) => record.name.includes(value),
    },
    {
        title: '大小',
        dataIndex: 'size',
        sorter: (a, b) => a.size - b.size > 0 ? 1 : -1,
        render: (text) => `${text} KB`
    },
    {
        title: '所有者',
        dataIndex: 'owner',
        render: (text, record, index) => {
            return (
                <div>
                    <Avatar size="small" color={record.avatarBg} style={{ marginRight: 4 }}>{typeof text === 'string' && text.slice(0, 1)}</Avatar>
                    {text}
                </div>
            );
        }

    },
    {
        title: '更新日期',
        dataIndex: 'updateTime',
        sorter: (a, b) => a.updateTime - b.updateTime > 0 ? 1 : -1,
        render: (value) => {
            return dateFns.format(new Date(value), 'yyyy-MM-dd');
        }
    }
];

const getData = () => {
    const data = [];
    for (let i = 0; i < 46; i++) {
        const isSemiDesign = i % 2 === 0;
        const randomNumber = (i * 1000) % 199;
        data.push({
            key: '' + i,
            name: isSemiDesign ? `Semi Design 设计稿${i}.fig` : `Semi Pro 设计稿${i}.fig`,
            owner: isSemiDesign ? '姜鹏志' : '郝宣',
            size: randomNumber,
            updateTime: new Date().valueOf() + randomNumber * DAY,
            avatarBg: isSemiDesign ? 'grey' : 'red'
        });
    }
    return data;
};

const data = getData();

function App() {
    const [dataSource, setData] = useState([]);
    const [loading, setLoading] = useState(false);
    const [currentPage, setPage] = useState(1);

    const fetchData = (currentPage = 1) => {
        setLoading(true);
        setPage(currentPage);
        return new Promise((res, rej) => {
            setTimeout(() => {
                const data = getData();
                let dataSource = data.slice((currentPage - 1) * pageSize, currentPage * pageSize);
                res(dataSource);
            }, 300);
        }).then(dataSource => {
            setLoading(false);
            setData(dataSource);
        });
    };

    const handlePageChange = page => {
        fetchData(page);
    };

    useEffect(() => {
        fetchData();
    }, []);

    return (
        <Table
            columns={columns}
            dataSource={dataSource}
            pagination={{
                currentPage,
                pageSize: 5,
                total: data.length,
                onPageChange: handlePageChange
            }}
            loading={loading}
        />
    );
}

render(App);